Luis Miguel Pires Ceríaco

CIBIO Research Center in Biodiversity and Genetic Resources | CIBIO · Center in Biodiversity and Genetic Resources

The genus Trachylepis is currently represented by 21 species in Angola, most of them part of nomenclaturally and taxonomically challenging species complexes. In this study we present an integrative taxonomic revision of the genus in Angola and describe seven new species: Trachylepis attenboroughi, sp. nov., Trachylepis bouri, sp. nov., Trachylepis...

Two Portuguese institutions, the Museu Maynense da Academia das Ciências de Lisboa (ACL), and the Museu da Ciência da Universidade de Coimbra (MCUC), house a collection of 85 dried fish specimens prepared in what can be called a “fish-herbaria” following a process similar to that developed by the Dutch naturalist Johan Frederic Gronovius (1690– 176...

The herpetofauna of São Tomé and Príncipe consists of nine species of amphibians, all endemic, and 21 species of terrestrial reptiles, of which 17 are endemic. Our current knowledge regarding its natural history, ecology, and distribution is limited. Here two important tools are provided to support researchers, conservationists, and local authoriti...

This open access book presents a comprehensive synthesis of the biodiversity of the oceanic islands of the Gulf of Guinea, a biodiversity hotspot off the west coast of Central Africa. Written by experts, the book compiles data from a plethora of sources – archives, museums, bibliography, official reports and previously unpublished data – to provide...

The Galinha dinosaur tracksite (Portugal) was declared a Natural Monument in 1996 and is currently designated as Ourém/Torres Novas Dinosaur Footprints Natural Monu ment. This tracksite yields a completely new and unique morphology of sauropod tracks from the Middle Jurassic (Bajocian-Bathonian). This new morphotype was named Polyonyx by Santos et...

A recent revision of the anacondas (Serpentes: Boidae: Eunectes), with the description of a new species of green anaconda, generated extensive publicity, but also provoked considerable controversy due to inadequacies of the evidence used and errors in nomenclature. We here use the case of this problematic publication to: (i) highlight common issues...

Four species of the genus Panaspis-P. cabindae, P. wahlbergii, P. maculicollis and P. mocamedensis-are currently known from Angola. The analysis of recently collected specimens from Serra da Neve Inselberg, an isolated mountain located in northern Na-mibe Province, revealed unexpected taxonomic diversity in the group. Using an integrative taxonomy...

Ansorge’s Rock Skink Trachylepis ansorgii (Boulenger, 1907) is an Angolan taxon, the taxonomic distinctiveness and geographic distribution of which are poorly understood. It is closely related to the widespread Western Rock Skink T. sulcata (Peters, 1867) from Namibia and South Africa, but heretofore a lack of samples has prevented a comprehensive...

The Corubal (Guinea-Bissau) is a wild but underexplored river in West Africa. This study underscores the potential of environmental DNA (eDNA) surveys to fill biodiversity knowledge gaps in the region. We filtered large water volumes at 11 sites along the watershed, amplified multiple molecular markers, and performed high PCR (polymerase chain reac...

The fundamental value of universal nomenclatural systems in biology is that they enable unambiguous scientific communication. However, the stability of these systems is threatened by recent discussions asking for a fairer nomenclature, raising the possibility of bulk revision processes for "inappropriate" names. It is evident that such proposals co...

The Serra da Neve inselberg in Namibe Province, southwestern Angola is the second highest peak of Angola with an elevation of 2489 m. It remains one of the least explored regions in the country, despite several endemic species having been recently described from this inselberg. Here we provide an inventory of the amphibian and reptile species ocurr...

Historical and recent arrivals of crocodilians to the Gulf of Guinean Oceanic Island of São Tomé have intrigued naturalists for several centuries. Here we present the revision of the historical records, and present data regarding the recent arrival of a single specimen in 2021. After being killed by the local authorities, the specimen was preserved...

Natural History Collections (NHCs) represent the world’s largest repositories of long-term biodiversity datasets. Specimen collection and voucher deposition has been the backbone of NHCs since their inception, but recent decades have seen a drastic decline in rates of growth via active collecting. Amphibians and reptiles are amongst the most threat...

Approximately 238 species of reptiles are found in the highlands and escarpments of Angola and Namibia (HEAN). Of the 430 species present in the two countries in total, 46 are strictly endemic (or nearly so) to the HEAN and another 16 have extensive portions of their ranges in these areas. Geckos constitute the majority of HEAN endemics with 32 spe...

During a recent survey of the Serra da Neve inselberg in southwestern Angola, a population of legless skinks of the genus Acontias was found. Only three species of this genus have been recorded for the country so far – A. occidentalis, A. kgalagadi and A. jappi. Using an integrative approach and combining molecular and morphological data we found t...

A series of specimens of an unidentified species of the genus Lygodactylus from Fernando de Noronha Island were found in the herpetological collections of the Museu Nacional, Rio de Janeiro (Brazil). No species of this genus were known to occur in the archipelago. A review of the historical reports regarding the herpetofauna of the island failed to...

Modern advances in DNA sequencing hold the promise of facilitating descriptions of new organisms at ever finer precision but have come with challenges as the major Codes of bionomenclature contain poorly defined requirements for species and subspecies diagnoses (henceforth, species diagnoses), which is particularly problematic for DNA-based taxonom...

Several specimens of Pachydactylus angolensis, a poorly known Angolan endemic gecko, have recently been collected in southern Angola, considerably increasing its known distribution range. Previous observations led to the hypothesis that two different morphological forms exist in the country-a coastal form and an inland form. Based on the morphologi...

This sixth report of activities of the Linz Zoocode Committee is devoted to the result of the enquiry launched by this Committee in 2021 about the status of new nomina and nomenclatural acts published so far on CD-ROMs. After a discussion of some problems of interpretation raised by Articles 8.4.2, 8.1.2 and 9.12 of the Code, we provide information...

The Gulf of Guinea, in the Atlantic coast of Central Africa, has three oceanic islands that arose as part of the Cameroon Volcanic Line. From northeast to southwest these are Príncipe (139 km ² ), São Tomé (857 km ² ), and Annobón (17 km ² ). Although relatively close to the adjacent mainland, the islands have distinct climactic and geomorphologic...

The Gulf of Guinea oceanic islands (Príncipe, São Tomé, and Annobón) are among the most endemic-rich regions of the planet. Historical scientific studies of the islands’ unique biodiversity are scattered in a variety of publications, many of which are difficult to access. More recently, there has been a growing interest in the islands, which is ref...

The oceanic islands of the Gulf of Guinea hold extraordinary levels of endemism across many taxonomic groups. Biodiversity surveys are still uncovering species new to science, and much work remains to be done on the evolution, ecology, and conservation of this unique biological heritage. The next 10 years will be crucial to find and implement devel...

This chapter reviews current knowledge on the diversity of terrestrial reptiles in the Gulf of Guinea oceanic islands and provides a brief history of research on this group of animals. A total of 29 species of terrestrial reptiles (representing 14 genera and seven families) are resident on the Gulf of Guinea oceanic islands, of which 22 species are...

This chapter reviews the diversity, evolutionary relationships, ecology, and conservation of the Gulf of Guinea oceanic islands’ endemic caecilian and anuran fauna. A total of nine amphibian species (representing five families) are known from São Tomé and Príncipe islands, all of which are endemic. No amphibians have been reported from Annobón. Tax...

The oceanic islands of the Gulf of Guinea (Príncipe, São Tomé, and Annobón) have been the focus of biological research for over two hundred years. Following small surveys that generated modest collections in the eighteenth and early mid-nineteenth century, European institutions commissioned several exploratory missions to the region that resulted i...

As with most archipelagos, geography played a central role in the assembly and evolution of the endemic-rich biological communities of the Gulf of Guinea oceanic islands. The islands are located at moderate distances from the species-rich African continent that surrounds them to the east and north. This proximity facilitated colonization by many br...

The genus Heliobolus comprises four recognized species, all endemic to sub-Saharan Africa. Of these, only Heliobolus lugubrisoccurs in southern Africa, its distribution extending from Angola in the west to Mozambique in the east and reaching as far south as parts of northern South Africa. Like many of the reptile species that occur in southern Afri...

This fifth report of activities of the Linz Zoocode Committee is devoted to a detailed survey of the problems raised by the current Rules of the Code, published in 2012, regarding the nomenclatural availability of works published online and registered on the database Zoobank. It points to various deficiencies in these Rules and in the conception an...

This fourth report of activities of the Linz Zoocode Committee is devoted to a detailed survey of the problems raised by the current Rules of the Code regarding the nomenclatural availability of works published on paper, concerning their dates, material and administrative parameters of publication, and various other matters. It proposes a few chang...

This third report of activities of the Linz Zoocode Committee provides comments and proposals regarding the concepts, terminology and Rules used to establish the nomenclatural availability of publications, whatever their support and mode of distribution (on paper, on discs or electronic).

This second report of activities of the Linz Zoocode Committee is devoted to a careful analysis of the concept of nomenclatural availability in zoological nomenclature, a concept often misunderstood and misused in recent taxonomic publications. It provides a definition of this expression and establishes a new nomenclatural principle, the Principle...

Resumo: Os anfíbios e répteis em Portugal povoam o imaginário coletivo e sobre eles se perpetuam histórias, crenças, lendas e mitos. Na sua maioria estas histórias não têm qualquer fundamento científico, mas têm tão forte presença na cultura local que se propagam de geração em geração. Este capítulo apresenta uma revisão geral destas ideias e prete...

Segundo a Organização Mundial de Saúde, os acidentes com serpentes venenosas são um dos mais negligenciados problemas de saúde pública a nível global, e em particular nas regiões tropicais. Em Angola, um dos países mais biodiversos do continente africano, são conhecidas 140 espécies de serpentes, das quais 34 possuem venenos potencialmente nefastos...

According to the Code currently in force, taxonomic works presenting nomenclatural novelties published on optical discs may be nomenclaturally available only if published between 1985 and 2013, and respecting some conditions allowing their nomenclatural promulgation. These works will remain accessible to readers only as long as the technologies all...

We describe a new species of the agamid genus Acanthocercus from Namibia and Angola, based on morphological and molecular evidence. The phylogenetic analysis of a fragment of the mitochondrial 16S rRNA gene suggests that the new species is closely related to the other taxa from southern Africa and is distinct from species from eastern and northeast...

The genus Pedioplanis reaches its northernmost limit in western Angola, where it is represented by three species, Pedioplanis benguelensis, P. haackei and P. huntleyi. The taxonomic status of P. benguelensis remains problematic, mainly due to the vague original escription and the loss of the original type material. Here we provide a revision of the...

Francisco Newton’s zoological expedition to Angola undertaken between 1903 and 1906 is one of the least studied of the naturalist’s life. Only three major papers regarding the herpetofauna collected in this expedition have been published, and a significant part of the specimens remains unstudied since the 1900’s. Here we review the extant herpetolo...

Alien species are among the greatest threats to biodiversity, but the evolutionary origins of invasiveness remain obscure. We conducted the first range-wide sampling of Hemidactylus mabouia from more than 120 localities across Africa, Madagascar and the Neotropics to understand the evolutionary history of one of the most widely distributed, invasiv...

The herpetological collections of the Instituto de Investigação Científica Tropical, Lisbon, are amongst the most important collections from the former Portuguese territories in Africa and Asia. The collection comprises more than 5000 preserved specimens, including type specimens of nine taxa, Trachylepis adamastor, Trachypelis thomensis, Panaspis...

Three species of Phrynomantis Peters, 1867, have been historically recorded for Angola: P. affinis, P. annectens and P. bifasciatus. As noted by all authors who have dealt with specimens of P. bifasciatus from the country, the Angolan population is characterized by an odd coloration pattern for the species, which led Boulenger to consider it a diff...

Ansorge’s cusimanse, Crossarchus ansorgei Thomas, 1910, has until recently been known in Angola only from a single specimen collected in 1908, the holotype. During a camera trap survey conducted in Quiçama National Park (Angola) in 2017, we recorded the presence of the species 115 km south-west of the type locality – 40 km from the edge of the curr...

A recent taxonomic revision of geckos of the genus Hemidactylus Goldfuss, 1820 uncovered cryptic diversity within the Congolese population of H. nzingae Cerı´aco, Agarwal, Marques and Bauer, 2020. Herein, we describe an unnamed southern Congolese lineage of H. nzingae as a new species. We base our description on previously published molecular evide...

Francisco Newton (1864–1909) was an important Portuguese naturalist who conducted several expeditions for more than 25 years during the late nineteenth and early twentieth century and who greatly contributed to the study of Portuguese overseas colonies. In 1902, Newton was nominated to undertake a zoological survey of Angola, commissioned by the Ac...

O livro Zoologia e Museus de História Natural em Portugal (Séculos XVIII-XX), do zoólogo português Luis Miguel Pires Ceríaco, trata do histórico das riquíssimas e antigas coleções portuguesas de história natural. Consideradas, em seu auge, as mais importantes da Europa, essas coleções eram famosas por reunir diversos espécimes coletados nas “viagen...

The taxonomic status of the São Tomé and Príncipe islands 'Cobras Jitas', genus Boaedon, has been a subject of confusion. Historically, these island populations have been referred to as part of either the Boaedon fuliginosus species complex or Boaedon capensis species complex, two of the most taxonomically challenging groups of African snakes, or c...

The herpetological collections of the Museu do Dundo in Lunda Norte Province, northeast Angola, are among the most important in southern Africa and represent one of the largest collections of Angolan amphibians and reptiles in the world. The collection comprises more than 2,750 preserved specimens, including type specimens of taxa described by Raym...

The reptile fauna of Tinhosa Grande islet, Gulf of Guinea, comprises an endemic skink, Trachylepis adamastor, and an unidentified species of gecko of the genus Hemidactylus. Until recently, no molecular data were available for either species, impeding their phylogenetic placement. However, due to several synapomorphic characters, it was suggested t...

Recent molecular phylogenetic work has found that Breviceps Merrem, 1820 comprises two major clades, one of which, the B. mossambicus group, is widely distributed across southern sub-Saharan Africa. This group is notable for harboring abundant cryptic diversity. Of the four most recently described Breviceps species, three are members of this group,...

Haemosporida are diverse vector-borne parasites associated with terrestrial vertebrates. Driven by the interest in species causing malaria (genus Plasmodium), the diversity of avian and mammalian haemosporidian species has been extensively studied, relying mostly on mitochondrial genes, particularly cytochrome b. However, parasites from reptiles ha...

A correction to the recent revision of the genus Hemidactylus Goldfuss, 1820 from Angola is presented. The previous revision assigned some historical specimens to H. bayonii and H. nzingae, with one specimen even being considered a paratype of the latter taxon. A review of the morphological data of all of the specimens used in the previous study fo...

At present the genus Lygodactylus is represented by three species in Angola confirmed by voucher specimens-L. angolensis, L. bradfieldi, and L. capensis-and two others believed to be present, but without specimens with precise localities, L. chobiensis and L. lawrencei. We present a detailed taxonomic revision of the group in Angola and describe th...

Two species of Bush Vipers, genus Atheris Cope, 1862, have been reported for the continental island of Bioko, Gulf of Guinea-Atheris squamigera and a putatively undescribed species, morphologically similar to Atheris chlorechis. The latter was only known from one specimen collected in the early 1900s and its taxonomic identity has never been fully...

An integrative taxonomic review of the genus Boaedon in Angola is provided. A molecular phylogeny, based on 99 genetic samples for which the mitochondrial markers 16S rRNA have been sequenced, reveals 23 monophyletic species-level groups in Africa and indicates the presence of nine species in Angola. Based on both phylogenetic and morphological dat...

The Angolan Adder, Bitis heraldica (Bocage, 1889), is endemic to the Angolan central plateau and is one of the most poorly known and rarely observed species of African snakes. The phylogenetic placement of B. heraldica within the four subgenera of the genus Bitis (Bitis, Macrocerastes, Calechidna, Keniabitis) has been problematic. The few recent ta...

Islands contribute enormously to global biodiversity, but their species and ecosystems are highly threatened and often confined to small patches of remaining native vegetation. Islands are thus ideal microcosms to study the local dimensions of global change. While human activities have drastically transformed most islands, the extent to which socie...

The genus Panaspis in Angola is represented by four species, most of them part of taxonomically and nomenclaturally challenging species-complexes. We present a taxonomic revision of the group in the region and describe one new species, Panaspis mocamedensis sp. nov., endemic to the lowland areas of the Namibe province, southwestern Angola. Phylogen...

The genus Hemidactylus in Angola is represented by six species, all of them part of taxonomically and nomenclaturally challenging species complexes. We present a detailed taxonomic revision of the group in the region and describe two new species, Hemidactylus nzingae sp. nov. and Hemidactylus paivae sp. nov., both occuring in and potentially endemi...

In July 2014, the international meeting ‘Burning questions and problems of zoological nomenclature’ was held in Linz (Austria). It acknowledged the presence in the current International Code of Zoological Nomenclature of a number of severe problems, and accordingly decided the creation of a new international body, the Linz Zoocode Committee (LZC),...

A new species of rupicolous girdled lizard is described from Serra da Neve Inselberg, Namibe Province, southwestern Angola. We sequenced two mitochondrial gene regions (16S and ND2) for the new species and compared these data with those previously published for other Cordylus species. The new species is genetically divergent from the closely relate...